A Designer Fluid For Aluminum Phase Change Devices. Performance Enhancement in Copper Heat Pipes Performance Enhancement in Copper Heat Pipes. Volume 3

Abstract

The deposition mechanisms and dry-out dynamics of a designer fluid were investigated experimentally in a flat grooved heat pipe. Generated coatings were observed during heat pipe operation. The fluid deposits demonstrated enhanced liquid spreading. The coating was found to creep up onto the fin tops and increase evaporative surface area. The overall thermal resistance was lowered and the maximum heat transport was increased. A numerical heat pipe model was developed for a grooved wick. Measurements of the coating geometry on coverage were used as empirical closure to represent the designer fluid. The theoretical and experimental temperature distributions matched well. Uncertainties in the closure properties were the major source oferror.

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Document Details

Document Type
Technical Report
Publication Date
Nov 17, 2016
Accession Number
AD1024113

Entities

People

  • Ivan Catton
  • Qi Yao

Organizations

  • University of California

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Chemical Synthesis
  • Chemistry
  • Chromium Compounds
  • Energy Transfer
  • Fluid Dynamics
  • Geometry
  • Heat Energy
  • Heat Pipes
  • Heat Transfer
  • Heat Transfer Devices
  • Latent Heat
  • Measurement
  • Military Research
  • Spacecraft
  • Surface Chemistry
  • Thermal Conductivity
  • Thermal Resistance

Fields of Study

  • Environmental science

Readers

  • Computational Modeling and Simulation
  • Thermal Physics or Thermal Science.
  • Tribology (the study of the boundary interaction between sliding surfaces, lubrication, wear and friction).